I-405 Bridge Bash – “Where did the traffic go?”

-IterisPeMS^TM Software Provides Instant Analysis on Orange County Traffic During I-405 Freeway Closure -

SANTA ANA, CA – August 19, 2013 -Iteris, Inc., a leader in providing intelligent traffic management information solutions, quickly provided analytics detailing the impacts of the I-405 closure, labeled “Bridge Bash” using its IterisPeMS^TM (iPeMS) software. The closure began at 9:00 PM on Saturday, August 17, and lasted until 3:00 PM Sunday.

iPeMS, an industry-leading transportation analytics platform, provides comprehensive real-time and historical road performance data for transportation agencies nationwide. iPeMS represents the next generation in performance measuring and monitoring, allowing agency staff to instantly analyze and manage their transportation systems, through real-time streaming data, instant analytics, and user friendly dashboards.

Comparing a 24 hour period from the closure weekend to the same 24 hour period on the previous two weekends, the data shows major traffic changes in traffic levels:

• The major closure roads (I-405, SR22, I-605) saw declines of up to 25% in traffic volumes.
  
• I-405 benefitted from the closure by experiencing an increase in the average speed in both northbound and southbound directions during the closure, along the opened segments.
  
• Drivers diverted to major alternate routes such as SR 91 and I-5, which experienced increases in traffic volumes (up to 24%) and decreases in average speeds (up to 14%)
  

Specific impacts noted on the aforementioned roadway segments:

• I-405 N/S betweenI-710 and SR 73 saw:
  
• Vehicle Miles Traveled (VMT) decrease 26% (SB) and 24% (NB)
• Vehicle Hours Traveled (VHT) decline 32% (SB) and 30% (NB)
• Average Space Mean Speed (Q) increase 9% (SB) and 7% (NB)

• SR 22 E/W between W of I-405 and I-5 saw:
  
• VMT decrease 9% (EB) and 5% (WB)
• VHT decrease 9% (EB) and 6% (WB)
• Q was flat in both directions

• I-605 N/S between I-405 and SR 91 saw:
• VMT decrease 13% (NB) and 24% (SB)
• VHT decrease 12% (NB) and 21% (SB)
• Q decrease 1% (NB) and 4% (SB)

• SR 91 E/W between I-605 and I-5 saw:
• VMT increase 5% (EB) and 6% (WB)
• VHT increase 12% (EB) and 24% (WB)
• Q decrease 6% (EB) and 14% (WB)

• I-5 N/S between SR 55 and SR 91 saw:
• VMT increase 6% (NB) and 6% (SB)
• VHT increase 14% (NB) and 8% (SB)
• Q decrease 7% (NB) and 2% (SB)

About Iteris, Inc.

Iteris, Inc. is a leader in providing intelligent information solutions to the traffic management market. The company is focused on the development and application of advanced technologies and software-based information systems that reduce traffic congestion, provide measurement, management, and predictive traffic analytics, and improve the safety of surface transportation systems. By combining its unique IP, products, decades of expertise in traffic management, and information technologies, Iteris offers a broad range of Intelligent Transportation System (ITS) solutions to customers throughout the U.S. and internationally. The firm is headquartered in Santa Ana, California, with offices nationwide and in the Middle East. For more information, please call 1-888-329-4483 or visit www.iteris.com. Also visit the company on Facebook, Twitter, and You Tube.